Frederic re-signing has no affect on DeBrusk days in Boston.
Quoting: ON3M4N
I have Frederic being protected over Ritchie. Ritchie is coming off his best career P/GP which put him at a pace of roughly 37 points. Started out great and reverted back to old Ritchie as the season went on, eventually being a guy that should have been scratched in the playoffs. He's got a $2 million QO and if DeBrusk is here he needs to play LW. That means Ritchie needs to go to 4LW and at that point Freddy can play Ritchies role for a fraction of the price.
Ritchie may also be enticing enough to SEA to not take Lauzon or one of Boston's other d-men.
SEA is going to take a defencemen like clifton, lauzon or zboril